The 300B is traditionally known as an output power tube, but in the Neo-Classic 300B Preamplifier, it is utilized as a high-performance line driver and headphone amplifier. The 300B's robust construction and large voltage swing capabilities make it an ideal choice for this application, delivering truly appropriate power and voltage swing for both the line stage and headphones. In this single-ended configuration, it provides the smooth, natural sound, low distortion (zero "crossover" distortion), and abundant emotional authority that the triode is famous for.

Tube rectification (using 5AR4 rectifier tubes and OD3 regulator tubes) is implemented in the power supply to complement the amplifier's rich, retro feel and sonic signature. While modern solid-state rectification is faster, tube rectification is smoother and less prone to introducing high-frequency noise into the delicate audio path. This, combined with an innovative ripple rejection circuit, helps ensure an incredibly low-noise floor and a smooth, liquid delivery of the high-voltage B+ supply to the 300Bs.

The Manley Neo-Classic 300B Preamplifier features two 1/4" headphone jacks on the front panel. These outputs are wired in parallel, allowing you to drive two pairs of headphones simultaneously. The powerful 300B output stage provides ample power (1 W into a 600 Ohm load) and high voltage swing to handle both headsets with full dynamics and control.

Yes, when a user plugs a pair of headphones into one of the front-panel 1/4" jacks, the preamplifier automatically mutes the main RCA line outputs and the SUB output. This prevents the speaker system from playing while the user is listening through headphones, offering a seamless and convenient transition to personal listening.

The Neo-Classic 300B RC is controlled by an omnidirectional RF (Radio-Frequency) Remote Control. Unlike traditional IR (Infrared) remotes which require a direct line of sight, the RF remote operates seamlessly through walls, floors, or through closed equipment cabinet doors. This allows the user to command the ALPS motorized volume control from virtually anywhere in the listening environment.

No, the Manley Neo-Classic 300B RC Preamplifier is a dedicated line-level preamplifier. It is designed to accept five stereo line-level inputs via unbalanced RCA jacks. To play vinyl records, the unit requires the signal to be processed by a high-quality external phono stage (such as a Manley Chinook or Steelhead) before being connected to one of the available line inputs.